Home / 215,891.20-323,739.60-97,501.60

Finding the Fourth Proportional to 215,891.20, 323,739.60 and 97,501.60

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Solution

The fourth proportional to 215,891.20, 323,739.60 and 97,501.60 is: 146,208.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,891.20 : 323,739.60 = 97,501.60 : x
  2. Step 2: Convert to fraction form
    215,891.20/323,739.60 = 97,501.60/x
  3. Step 3: Cross multiply
    215,891.20x = 323,739.60 × 97,501.60
  4. Step 4: Simplify right side
    215,891.20x = 31,565,128,983.36
  5. Step 5: Solve for x
    x = 31,565,128,983.36/215,891.20
  6. Step 6: Final answer
    x = 146,208.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.